package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.domain.Employee;
import com.itheima.reggie.service.EmployeeService;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.DigestUtils;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;
import java.time.LocalDateTime;

@RestController
@Slf4j
@RequestMapping("/employee")
public class EmployeeController {
    @Autowired
    private EmployeeService employeeService;

    /**
     * 员工登录
     */
    @PostMapping("/login")
    public R<Employee> login(HttpServletRequest request,@RequestBody Employee employee){
        //1. 将页面提交的密码password进行md5加密处理, 得到加密后的字符串
        String password = employee.getPassword();
        password = DigestUtils.md5DigestAsHex(password.getBytes());
        //2. 根据页面提交的用户名username查询数据库中员工数据信息
        LambdaQueryWrapper<Employee> lqw = new LambdaQueryWrapper<>();
        lqw.eq(Employee::getUsername,employee.getUsername());
        Employee emp = employeeService.getOne(lqw);
        //3. 如果没有查询到, 则返回登录失败结果
        if (emp == null){
            return R.error("登录失败");
        }
        //4. 密码比对，如果不一致, 则返回登录失败结果
        if (!emp.getPassword().equals(password)){
            return R.error("登录失败");
        }
        //5. 查看员工状态，如果为已禁用状态，则返回员工已禁用结果
        if (emp.getStatus() != 1){
            return R.error("员工已禁用");
        }
        //6. 登录成功，将员工id存入Session, 并返回登录成功结果
        request.getSession().setAttribute("employee",emp.getId());
        return R.success(emp);
    }
    /**
     * 员工退出
     */
    @PostMapping("/logout")
    public R<String> logout(HttpServletRequest request){
        //清理Session中存储的员工id
        request.getSession().removeAttribute("employee");
        return R.success("退出成功");
    }
    /**
     * 新增员工
     */
    @PostMapping
    public R<String> save(HttpServletRequest request,@RequestBody Employee employee){
        log.info("新增员工,信息:{}",employee.toString());
        //设置初始密码123456，需要进行md5加密处理
        employee.setPassword(DigestUtils.md5DigestAsHex("123456".getBytes()));
        //封装创建时间、修改时间，创建人、修改人信息
     /*   employee.setCreateTime(LocalDateTime.now());
        employee.setUpdateTime(LocalDateTime.now());

        //获得当前登录用户的id
        Long id = (Long) request.getSession().getAttribute("employee");
        employee.setCreateUser(id);
        employee.setUpdateUser(id);
*/
        employeeService.save(employee);
        return R.success("新增员工成功");
    }
    /**
     * 分页查询
     */
    @GetMapping("/page")
    public R<Page> page(int page,int pageSize,String name){
        log.info("page={},pageSize={},name={}",page,pageSize,name);
        //构造分页构造器
        Page<Employee> pageInfo = new Page<>(page, pageSize);

        //构造条件构造器
        LambdaQueryWrapper<Employee> lqw = new LambdaQueryWrapper<>();
        //添加过滤条件
        lqw.like(StringUtils.isNotEmpty(name),Employee::getName,name);
        //添加排序条件
        lqw.orderByDesc(Employee::getUpdateTime);
        //执行查询
        employeeService.page(pageInfo,lqw);
        return R.success(pageInfo);
    }
    /**
     * 修改员工信息
     */
    @PutMapping
    public R<String> update(HttpServletRequest request,@RequestBody Employee employee){
        log.info(employee.toString());
        long id = Thread.currentThread().getId();
        log.info("线程id:{}",id);
        /*Long empId = (Long) request.getSession().getAttribute("employee");
        employee.setUpdateTime(LocalDateTime.now());
        employee.setUpdateUser(empId);*/
        employeeService.updateById(employee);
        return R.success("修改成功");
    }
    /**
     * 根据id查询
     */
    @GetMapping("/{id}")
    public R<Employee> getById(@PathVariable Long id){
        log.info("根据id查询员工");
        Employee emp = employeeService.getById(id);
        if (emp == null){
            return R.error("员工不存在");
        }
        return R.success(emp);
    }
}
